APA引文

Letcher,Trevor M. (2009). Climate Change: Observed impacts on planet earth. Elsevier.

Chicago Edition Citation

Letcher,Trevor M. Climate Change: Observed Impacts on Planet Earth. Amsterdam: Elsevier, 2009.

MLA引文

Letcher,Trevor M. Climate Change: Observed Impacts on Planet Earth. Elsevier, 2009.

警告：這些引文格式不一定是100％准確.